Review on Neewer Waterproof 131ft Underwater 700LM Flash Dimmable Fill Night Light with 3 Color Filters (White, Orange, Purple) for GoPro Hero 7 6 5 4 3+ Action Camera and DSLR Cameras by Ivan Carson

Works like a charm, attached to the mount next to my Akaso underwater cameras and about 45 minutes at altitude with a bright piercing beam illuminating an area about 15 feet in front of me, 150 feet in the lake water. The only concern is that the battery gets EXTREMELY hot inside when charging. Hot enough to burn your fingers. I would wholeheartedly recommend bringing a LiPo battery case to hold while charging just in case there are any problems. I've charged mine at least 50 times with no issues, however YMMV